July weather forecast
Detroit, MI

The downtown city of Detroit, Michigan viewed from a bird
The downtown city of Detroit, Michigan viewed from a bird's eye angle

Weather in July

July, the same as June, is another warm summer month in Detroit, Michigan, with an average temperature ranging between max 79.9°F (26.6°C) and min 65.8°F (18.8°C).

Temperature

July is the warmest month, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 65.8°F (18.8°C).

Humidity

July and August, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Detroit, during July, the rain falls for 16.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Detroit, during the entire year, the rain falls for 152.1 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

June through September are months without snowfall in Detroit.

Ocean temperature

In Detroit, Michigan, in July, the average water temperature is 74.8°F (23.8°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 74.8°F (23.8°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in July is 14h and 55min.
On the first day of July in Detroit, sunrise is at 5:59 am and sunset at 9:12 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:53 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index in Detroit, Michigan, are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the warmest month in Detroit?

The warmest month in Detroit, Michigan, is July, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 65.8°F (18.8°C).

What is the least humid month in Detroit?

July and August, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in July in Detroit?

The average relative humidity in July in Detroit, Michigan, is 73%.

How much does it rain in Detroit in July?

In Detroit, Michigan, during July, the rain falls for 16.5 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Detroit?

June through September are months without snowfall in Detroit, Michigan.

What is the water temperature in July in Detroit?

In Detroit, Michigan, in July, the average water temperature is 74.8°F (23.8°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 74.8°F (23.8°C).

How many hours of daylight does Detroit have in July?

In July, the average day length in Detroit is 14h and 55min.

When is the sunrise / sunset in July in Detroit?

In July, on the first day of the month, sunrise is at 5:59 am and sunset at 9:12 pm. On the last day of the month, in Detroit, sunrise is at 6:24 am and sunset at 8:53 pm EDT.

What month has the most sunshine in Detroit?

The month with the most sunshine in Detroit is July, with an average of 10.6h of sunshine.

How many hours of sunshine does Detroit have in July?

In July, the average sunshine duration in Detroit is 10.6h.

When is the highest UV index in Detroit?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Detroit, Michigan.

How high is the UV index in July in Detroit?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Detroit, MI

Average temperature in July - Detroit, MI
  • Average high temperature in July: 79.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in July
Detroit, MI

Average pressure in July - Detroit, MI
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Detroit, MI

Average wind speed in July - Detroit, MI
  • Average wind speed in July: 6.8mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in July
Detroit, MI

Average humidity in July - Detroit, MI
  • Average humidity in July: 73%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (73%).

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Average rainfall in July
Detroit, MI

Average rainfall in July - Detroit, MI
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in July
Detroit, MI

Average rainfall days in July - Detroit, MI
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in July
Detroit, MI

Average snowfall in July - Detroit, MI
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Detroit, MI

Average snowfall days in July - Detroit, MI
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in July
Detroit, MI

Average sea temperature in July - Detroit, MI
  • Average sea temperature in July: 74.7°F

The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).

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Average daylight in July /
Average sunshine in July
Detroit, MI

Average daylight in July / Average sunshine in July - Detroit, MI
  • Average daylight in July: 14h and 55min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in July: 10h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in July
Detroit, MI

Average sunshine days in July - Detroit, MI
  • Average sunshine days in July: 12.4 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (10.7 days).

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Average UV index in July
Detroit, MI

Average UV index in July - Detroit, MI
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
Detroit, MI

Average cloud cover in July - Detroit, MI
  • Average cloud cover in July: 27

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in July
Detroit, MI

Average visibility in July - Detroit, MI
  • Average visibility in July: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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